I'm setting up a roughly a 280g system and was kicking around the idea of doing a dual refugium. I've only got room for about 20g in the first chamber of my sump but I've got a rimless 30g just sitting around that I could put to good use. The idea would be to run cheato w/ a h380 in the first compartment of the sump and then use the 30g as a mangrove and "display" refugium with all the mixed species of algaes under a 6500k light source. The 30g would be plumbed off the pump running my reactor manifold and would drain back down into the main drain section in the sump. Would something like that work? I'm planning on going core7 and it's either this route or putting the mixed algaes in the sump and supplementing with a cheato reactor.